Here is the datasheet from the manufacturer.
https://s3-eu-west-1.amazonaws.com/static.wm3.se/sites/434/media/157635_TUMLAREN.pdf?1503241749
Since Ryds have decided to no longer publish datasheet from their older models, don't ask me why, you have to look at cached versions of their web site.
https://web.archive.org/web/20210701000000*/https://ryds.se/historik/